摘要：The study was done for a complete year on monthly basis and the differences on the various parameters selected were measured. Significantly higher number of fungi and bacteria were recorded in non-roadside soil then the effected roadside soil. Rate of soil respiration, enzymes activity also followed a similar trend. Other physicochemical characteristics as soil moisture, soil pH , soil temperature and soil carbon revealed similar variations in two conditions. Microbial population and enzyme activities like dehydrogenase, urease and phosphatase were positively correlated (p<0.05) to the edaphic properties of the soil. Microbial populations, soil respiration, enzymes activity and other physicochemical characteristics were determined from the sub-tropical forest soils of roadside (disturbed) and non-roadside (undisturbed) conditions to compare and the adverse effects of anthropogenic activities and roadside vehicular pollution in the busy national highway. The study site is devoid of human settlement and was once a pristine environment prior to the construction of highway through the forest. An average of 10,000 to 12,000 vehicles plies through the road per day.
